NPI Portal NPI Lookup & Verification

Dr. John David Marr, DO

Dr. John David Marr is a Surgery Physician provider (Surgery) practicing in Waco, TX, registered in the NPPES registry with NPI 1952898017 since 2018. The credential DO stands for Doctor of Osteopathic Medicine.

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NPI 1952898017
Entity type Individual (Type 1)
Name Dr. John David Marr
Credential DO
Sex Male
Practice address 100 HILLCREST MEDICAL BLVD, Waco, TX, 76712
Phone 2542022000
Enumeration date 2018-04-15
Last updated in NPPES 2023-10-26

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208600000X Surgery Physician Secondary BP10062651 TX
208600000X Surgery Physician Primary U4563 TX

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Copy-ready billing details
Provider: John Marr, DO
NPI: 1952898017
Taxonomy: 208600000X (Surgery Physician)
Address: 100 HILLCREST MEDICAL BLVD, Waco, TX, 76712

Other providers at this practice address

NPI Name Type Specialty Location
1154324697 Kathleen Dawson Individual Certified Registered Nurse Anesthetist Waco, TX
1639177462 Tamsak Kanoklukul Individual Certified Registered Nurse Anesthetist Waco, TX
1871585737 Janis Giles Individual Family Nurse Practitioner Waco, TX
1750379640 Alan Sims Individual Anesthesiologist Assistant Waco, TX
1194706432 Rafael Perez Individual Pulmonary Disease Physician Waco, TX
1376526251 George Schwartze Individual Neuromusculoskeletal Medicine & OMM Physician Waco, TX
1144206475 David Norman Individual Certified Registered Nurse Anesthetist Waco, TX
1831176825 Steven Frawley Individual Certified Registered Nurse Anesthetist Waco, TX

Verify this record

Cross-check NPI 1952898017 against the authoritative CMS record: view Dr. John David Marr on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is John Marr?
John Marr is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2023-10-26.